(5-21) For two blocks, connected by a cord and sliding down the incline shown in Fig. 5-34 (see Prob

(5-21) For two blocks, connected by a cord and sliding down the incline shown in Fig. 5-34 (see Problem 20), describe the motion (a) if and (b) if . (c) Determine a formula for the acceleration of each block and the tension FT in the cord in terms of mA, mB, and ; interpret your results in light of your answers to (a) and (b).